▼ Menu

PM5X

 
See also:
The Philips-Mullard (PM) Series - Mullard PM5X Advert, May 1927 - Mullard PM5X Advert, September 1927
    
Extras ▼

 

The PM5X general purpose and audio output valve is part of the 1927 six volt range from Mullard. The details on the valve emphasise that there is practically no glow from the filament. The PM filament was an oxide coated azide type.
The balloon envelope is 43 mm in diameter and, excluding the B4 base pins, is 88 mm tall.
References: 1931 datasheet & 1043. Type PM5X was first introduced in 1927.

 

Pin Connections
B4
1
2
3
4
a
g1
f
f

 

Absolute Maximum Operating Conditions
Triode
Vh
Ah
Va
Vg
mAa
ra
gm
μ
6.0
0.075
150
-3.0
-2.0
19,000
0.95
18
Thanks to Andy Cowley for supplying the above PDF datasheet.
Updated December21, 2012.
Return to Main Index